Dry-spraying machine.



W. H. ROSE.

DRY SPHAYING MACHINE.

APPLICATION FILED 1Au.30.m9.

1,800,654. i Patented Apr. 15,1919.

' S M/Um WILLIAM H. ROSE, JERSEY CITY, NEW JERSEY.

DRY sPRAYING MACHINE.

Specification of Letters Patent.

Patented Apr. 15, 1919.

Application filed January 30, 1919. Serial No. 274,039.

To all whom it may concern:

- Be it known that 1, WILLIAM H. -R osn, a citizen of the United States,and resldmg at Jersey City, Hudson county, State of New Jersey, haveinvented certain new and useful Improvements in Dry-Spraying Machines,of which the following is a specification.-

' Spray material, such as Paris green, sulfur and arsenate of lead, haveheretofore been applied to trees and plants in both liquid and drycondition. In uslng such mate? rials dry they are usually pulvenzed tosuch a degree that they may be blown with air pressure'through suitablenozzles and thus distributed over the plants or trees to be treated. Thepowdered material, or dust, is

usually sold in bulk, or in packages, whlch must be opened and theblowers or guns for applying the material are provlded with receptaclesto receive the powder. Most of these spray materials are poisonous andare disagreeable, and also more or less dangerous to handle.

One of the objects of my invention 1s to provide a spray gun or bloweradapted to receive a sealed package of the spray material and toperforate the package and discharge the contents after the package hasbeen placed in the devlce. Another ob ect is to provide a sealed packagewhich may be suitably perforated and whlch may be placed in acompartment of the gun or blower before being opened and dischargedtherefrom without the necessity of handling it after its contents havebeen exposed.

One embodiment of my invention is illustrated in the accompanyingdrawing in which Figure 1 is a longitudinal v1ew partlynn sectionshowing an air pump or blower wlth a sealed package of spray material inits forward end;

Fig. 2 is a sectional view of the same illustrating the operation of thedevice for perforating the package to permit of the discharge of itscontents;

Fig. 3 is a perspective view of one form of package adapted to theparticular gun or blower illustrated; and

Fig. 4 is a sectional view of another form of package.

Referring to the drawings, 10 indicates a pump cylinder having a piston11 of ordinary construction, a piston rod 12, a handle 13, and a head 14in which the piston rod is guided. These parts may be of any suitableconstruction and, as shown, are of the usual form employed in singlebarrel air pumps for inflating tires.

The forward end 15 of the pump is removable to permit of the insertionof a package A of spray material. As shown, the end 15 is in the form ofa screw cap having threads 16 fitting corresponding threads on theforward end of the barrel. Any suitable stop, such as the rib 17 may beused to hold the package A in the forward end of the barrel. The cap orhead 15 is provided with a suitable spray nozzle 18 which is preferablyfan-shaped, as shown, the discharge opening being long and very narrow.

On the forward end of the piston 11 is a spike or piercing device 19,which may be a continuation of the piston rod 12, as shown. This spikeis preferably pointed at its end and is adapted, when the piston ismoved forward, to pierce both ends of the package A, as shown in Fig. 2.The package is preferably. sealed so that it may be handled withouttouching or coming in contact with its contents, and its ends 20 arepreferably of material which may be easily perforated. If metal or anytough material is used for the ends of the container, suitable openingstherein may be formed in the manufacture of the package and sealed withpaper or other material which may be easily perforated or removed. Thusin Fig. 4: there is shown a container B having openings 21 in its endswhich are normally covered by detachable seals 22.

The operation of the invention is as follows: The package of pulverizedspray material is placed in the position shown in the drawing byremoving and replacing the cap 15. The piston is then moved forward tothe position shown in Fig. 2, which perforates both ends of'the package.When the piston is withdrawn a channel is left through the center of thepackage and when the piston is moved forward again air blows throughthis channel, carrying a portion of the dust or powder with it into thenozzle, from which it may be sprayed on plants or vines, oron otherobjects to be treated. The piston is then moved backward and forward inthe usual manner and the air eddying through the package will continueto discharge the contents through the nozzle until the package isexhausted. It is impossible .is exhausted the cap 15 is removed and theempty case of the package may be shaken out of the pump without handllngit. Another package may then be placed in the pump and the operationsabove described re- 'peated.

The above described apparatus is a form of the invention which I havefound to Work satisfactorily, but it will be evident that my inventionmay be embodied in various other forms and that the following claims arenot necessarily limited to the device illustrated and described. .Ibelieve myself to be the first to discharge dry spray materials fromoriginal packages thereof and the first to provide means for perforatingpackages and discharging the contents thereof, in a spraying device.

What I claim is:

1'. In an apparatus for spraying powdered material, the combination witha closed package of such material, of means for holding the package,other means for opening the package at two points, and means for blowingair through said openings and through the package.

2. In an apparatus for spraying pulverized material, the combination ofa package of such material, a holder for the package, a

means for perforating the nozzle communicating with said holder, packagethrough opposite sides, one of the perforations being adjacent thenozzle, and means for blowing air through said package to dischargematerial from said nozzle.

3. In an apparatus for spraying powdered material, the combination witha package of such material, of a holder for such package, a nozzleconnected with the holder, a reciprocating device for repeatedlypiercing the package in line with the nozzle, and means for blowing airthrough said package whereby the contents are discharged through thenozzle. I

4. In an apparatus for spraying pulverized material, a pump barrelhaving a nozzle on its forward end, a piston and piston rod operating insaid barrel, and a spike extending longitudinally of the barrel andconnected with the piston in front of the same, said spike being adaptedto pierce'a package of material at each reciprocation of the piston, forthe purpose set forth.

5. In an apparatus for spraying' powdered material, the combination witha pump barrel having a piston and piston rod therein, of a removable capon the forward end of the barrel, a chamber in the forward end adaptedto receive a package of spray material, a stop for limiting the inwardmovement of said package, and means for perforating the package wherebythe spray material may be discharged.

In testimony whereof I aiiix my signature.

WILLIAM H. ROSE.

